Examples with PingableLeader com.palantir.leader.PingableLeader used on opensource projects

Example 1 with PingableLeader

use of com.palantir.leader.PingableLeader in project atlasdb by palantir.

the class Leaders method createInstrumentedLocalServices.

public static LocalPaxosServices createInstrumentedLocalServices(LeaderConfig config, Supplier<LeaderRuntimeConfig> runtime, RemotePaxosServerSpec remotePaxosServerSpec, String userAgent) {
    UUID leaderUuid = UUID.randomUUID();
    PaxosLeadershipEventRecorder leadershipEventRecorder = PaxosLeadershipEventRecorder.create(AtlasDbMetrics.getMetricRegistry(), leaderUuid.toString());
    PaxosAcceptor ourAcceptor = AtlasDbMetrics.instrument(PaxosAcceptor.class, PaxosAcceptorImpl.newAcceptor(config.acceptorLogDir().getPath()));
    PaxosLearner ourLearner = AtlasDbMetrics.instrument(PaxosLearner.class, PaxosLearnerImpl.newLearner(config.learnerLogDir().getPath(), leadershipEventRecorder));
    Optional<SSLSocketFactory> sslSocketFactory = ServiceCreator.createSslSocketFactory(config.sslConfiguration());
    List<PaxosLearner> learners = createProxyAndLocalList(ourLearner, remotePaxosServerSpec.remoteLearnerUris(), sslSocketFactory, PaxosLearner.class, userAgent);
    List<PaxosAcceptor> acceptors = createProxyAndLocalList(ourAcceptor, remotePaxosServerSpec.remoteAcceptorUris(), sslSocketFactory, PaxosAcceptor.class, userAgent);
    Map<PingableLeader, HostAndPort> otherLeaders = generatePingables(remotePaxosServerSpec.remoteLeaderUris(), sslSocketFactory, userAgent);
    InstrumentedExecutorService proposerExecutorService = new InstrumentedExecutorService(PTExecutors.newCachedThreadPool(new ThreadFactoryBuilder().setNameFormat("atlas-proposer-%d").setDaemon(true).build()), AtlasDbMetrics.getMetricRegistry(), MetricRegistry.name(PaxosProposer.class, "executor"));
    PaxosProposer proposer = AtlasDbMetrics.instrument(PaxosProposer.class, PaxosProposerImpl.newProposer(ourLearner, acceptors, learners, config.quorumSize(), leaderUuid, proposerExecutorService));
    InstrumentedExecutorService leaderElectionExecutor = new InstrumentedExecutorService(PTExecutors.newCachedThreadPool(new ThreadFactoryBuilder().setNameFormat("atlas-leaders-election-%d").setDaemon(true).build()), AtlasDbMetrics.getMetricRegistry(), MetricRegistry.name(PaxosLeaderElectionService.class, "executor"));
    PaxosLeaderElectionService paxosLeaderElectionService = new PaxosLeaderElectionServiceBuilder().proposer(proposer).knowledge(ourLearner).potentialLeadersToHosts(otherLeaders).acceptors(acceptors).learners(learners).executor(leaderElectionExecutor).pingRateMs(config.pingRateMs()).randomWaitBeforeProposingLeadershipMs(config.randomWaitBeforeProposingLeadershipMs()).leaderPingResponseWaitMs(config.leaderPingResponseWaitMs()).eventRecorder(leadershipEventRecorder).onlyLogOnQuorumFailure(JavaSuppliers.compose(LeaderRuntimeConfig::onlyLogOnQuorumFailure, runtime)).build();
    LeaderElectionService leaderElectionService = AtlasDbMetrics.instrument(LeaderElectionService.class, paxosLeaderElectionService);
    PingableLeader pingableLeader = AtlasDbMetrics.instrument(PingableLeader.class, paxosLeaderElectionService);
    return ImmutableLocalPaxosServices.builder().ourAcceptor(ourAcceptor).ourLearner(ourLearner).leaderElectionService(leaderElectionService).pingableLeader(pingableLeader).build();
}

Example 2 with PingableLeader

use of com.palantir.leader.PingableLeader in project atlasdb by palantir.

the class LeaderPingHealthCheckTest method shouldBeUnhealthyIfQuorumNodesAreUpAndNoNodePingedSuccessfully.

@Test
public void shouldBeUnhealthyIfQuorumNodesAreUpAndNoNodePingedSuccessfully() throws Exception {
    PingableLeader leader1 = getMockOfPingableLeaderWherePingReturns(false);
    PingableLeader leader2 = getMockOfPingableLeaderWherePingReturns(false);
    PingableLeader leader3 = getMockOfPingableLeaderWherePingThrows();
    ImmutableSet<PingableLeader> leaders = ImmutableSet.of(leader1, leader2, leader3);
    assertEquals(TimeLockStatus.NO_LEADER, new LeaderPingHealthCheck(leaders).getStatus());
}

Example 3 with PingableLeader

use of com.palantir.leader.PingableLeader in project atlasdb by palantir.

the class LeaderPingHealthCheckTest method shouldBeUnhealthyIfQuorumNodesAreNotUpAndNoNodePingedSuccessfully.

@Test
public void shouldBeUnhealthyIfQuorumNodesAreNotUpAndNoNodePingedSuccessfully() throws Exception {
    PingableLeader leader1 = getMockOfPingableLeaderWherePingReturns(false);
    PingableLeader leader2 = getMockOfPingableLeaderWherePingThrows();
    PingableLeader leader3 = getMockOfPingableLeaderWherePingThrows();
    ImmutableSet<PingableLeader> leaders = ImmutableSet.of(leader1, leader2, leader3);
    assertEquals(TimeLockStatus.NO_QUORUM, new LeaderPingHealthCheck(leaders).getStatus());
}

Example 4 with PingableLeader

use of com.palantir.leader.PingableLeader in project atlasdb by palantir.

the class LeaderPingHealthCheckTest method shouldBeHealthyIfQuorumNodesUpAndOnePingedSuccessfully.

@Test
public void shouldBeHealthyIfQuorumNodesUpAndOnePingedSuccessfully() throws Exception {
    PingableLeader leader1 = getMockOfPingableLeaderWherePingReturns(true);
    PingableLeader leader2 = getMockOfPingableLeaderWherePingReturns(false);
    PingableLeader leader3 = getMockOfPingableLeaderWherePingThrows();
    ImmutableSet<PingableLeader> leaders = ImmutableSet.of(leader1, leader2, leader3);
    assertEquals(TimeLockStatus.ONE_LEADER, new LeaderPingHealthCheck(leaders).getStatus());
}

Example 5 with PingableLeader

use of com.palantir.leader.PingableLeader in project atlasdb by palantir.

the class LeaderPingHealthCheckTest method getPingableLeaders.

private ImmutableSet<PingableLeader> getPingableLeaders(boolean pingResultForLeader1, boolean pingResultForLeader2, boolean pingResultForLeader3) {
    PingableLeader leader1 = getMockOfPingableLeaderWherePingReturns(pingResultForLeader1);
    PingableLeader leader2 = getMockOfPingableLeaderWherePingReturns(pingResultForLeader2);
    PingableLeader leader3 = getMockOfPingableLeaderWherePingReturns(pingResultForLeader3);
    return ImmutableSet.of(leader1, leader2, leader3);
}